package de.SiSoft.pendlerpad.view;

import java.util.Locale;

import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.view.ViewPager;
import android.support.v7.app.ActionBar;
import android.support.v7.app.ActionBarActivity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageButton;
import de.SiSoft.pendlerpad.R;

public class TabNavigationActivity extends ActionBarActivity implements
	ActionBar.TabListener {

    /**
     * The {@link android.support.v4.view.PagerAdapter} that will provide
     * fragments for each of the sections. We use a {@link FragmentPagerAdapter}
     * derivative, which will keep every loaded fragment in memory. If this
     * becomes too memory intensive, it may be best to switch to a
     * {@link android.support.v4.app.FragmentStatePagerAdapter}.
     */
    SectionsPagerAdapter mSectionsPagerAdapter;

    /**
     * The {@link ViewPager} that will host the section contents.
     */
    ViewPager mViewPager;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);
	setContentView(R.layout.activity_tab_navigation);

	// Set up the action bar.
	final ActionBar actionBar = getSupportActionBar();
	actionBar.setHomeButtonEnabled(false);
	actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);

	// Create the adapter that will return a fragment for each of the three
	// primary sections of the activity.
	mSectionsPagerAdapter = new SectionsPagerAdapter(
		getSupportFragmentManager());

	// Set up the ViewPager with the sections adapter.
	mViewPager = (ViewPager) findViewById(R.id.pager);
	mViewPager.setAdapter(mSectionsPagerAdapter);

	// When swiping between different sections, select the corresponding
	// tab. We can also use ActionBar.Tab#select() to do this if we have
	// a reference to the Tab.
	mViewPager
		.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
		    @Override
		    public void onPageSelected(int position) {
			actionBar.setSelectedNavigationItem(position);
		    }
		});

	// For each of the sections in the app, add a tab to the action bar.
	for (int i = 0; i < mSectionsPagerAdapter.getCount(); i++) {
	    // Create a tab with text corresponding to the page title defined by
	    // the adapter. Also specify this Activity object, which implements
	    // the TabListener interface, as the callback (listener) for when
	    // this tab is selected.
	    actionBar.addTab(actionBar.newTab()
		    .setIcon(mSectionsPagerAdapter.getPageIcon(i))
		    // .setText(mSectionsPagerAdapter.getPageTitle(i))
		    .setTabListener(this));
	}
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {

	// Inflate the menu; this adds items to the action bar if it is present.
	getMenuInflater().inflate(R.menu.tab_navigation, menu);
	return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
	// Handle action bar item clicks here. The action bar will
	// automatically handle clicks on the Home/Up button, so long
	// as you specify a parent activity in AndroidManifest.xml.
	int id = item.getItemId();
	if (id == R.id.action_settings) {
	    return true;
	}
	return super.onOptionsItemSelected(item);
    }

    @Override
    public void onTabSelected(ActionBar.Tab tab,
	    FragmentTransaction fragmentTransaction) {
	// When the given tab is selected, switch to the corresponding page in
	// the ViewPager.
	mViewPager.setCurrentItem(tab.getPosition());
    }

    @Override
    public void onTabUnselected(ActionBar.Tab tab,
	    FragmentTransaction fragmentTransaction) {
    }

    @Override
    public void onTabReselected(ActionBar.Tab tab,
	    FragmentTransaction fragmentTransaction) {
    }

    /**
     * A {@link FragmentPagerAdapter} that returns a fragment corresponding to
     * one of the sections/tabs/pages.
     */
    public class SectionsPagerAdapter extends FragmentPagerAdapter {

	private final int TABCOUNT = 4;

	public SectionsPagerAdapter(FragmentManager fm) {
	    super(fm);
	}

	@Override
	public Fragment getItem(int position) {
	    // getItem is called to instantiate the fragment for the given page.
	    // Return a PlaceholderFragment (defined as a static inner class
	    // below).
	    switch (position) {
		case 0:
		    // Top Rated fragment activity
		    return new WorktimeFragment();
		case 1:
		    // Games fragment activity
		    return new JourneyFragment();
		case 2:
		    // Movies fragment activity
		    return new CostsFragment();
		case 3:
		    // Movies fragment activity
		    return new OverviewFragment();
	    }

	    return null;
	}

	@Override
	public int getCount() {
	    // Show 3 total pages.
	    return TABCOUNT;
	}

	@Override
	public CharSequence getPageTitle(int position) {
	    Locale l = Locale.getDefault();
	    switch (position) {
		case 0:
		    return getString(R.string.title_tab1).toUpperCase(l);
		case 1:
		    return getString(R.string.title_tab2).toUpperCase(l);
		case 2:
		    return getString(R.string.title_tab3).toUpperCase(l);
		case 3:
		    return getString(R.string.title_tab4).toUpperCase(l);
	    }
	    return null;
	}

	public Drawable getPageIcon(int position) {
	    Locale locale = Locale.getDefault();
	    switch (position) {
		case 0:
		    return getResources().getDrawable(
			    R.drawable.worktime_icon_tab);
		case 1:
		    return getResources().getDrawable(
			    R.drawable.journey_icon_tab);
		case 2:
		    return getResources()
			    .getDrawable(R.drawable.costs_icon_tab);
		case 3:
		    return getResources().getDrawable(
			    R.drawable.overview_icon_tab);
	    }
	    return null;
	}
    }

    // /**
    // * A placeholder fragment containing a simple view.
    // */
    // public static class PlaceholderFragment extends Fragment {
    // /**
    // * The fragment argument representing the section number for this
    // * fragment.
    // */
    // private static final String ARG_SECTION_NUMBER = "section_number";
    //
    // /**
    // * Returns a new instance of this fragment for the given section
    // * number.
    // */
    // public static PlaceholderFragment newInstance(int sectionNumber) {
    // PlaceholderFragment fragment = new PlaceholderFragment();
    // Bundle args = new Bundle();
    // args.putInt(ARG_SECTION_NUMBER, sectionNumber);
    // fragment.setArguments(args);
    // return fragment;
    // }
    //
    // public PlaceholderFragment() {
    // }
    //
    // @Override
    // public View onCreateView(LayoutInflater inflater, ViewGroup container,
    // Bundle savedInstanceState) {
    // View rootView = inflater.inflate(R.layout.fragment_tab_navigation,
    // container, false);
    // TextView textView = (TextView) rootView.findViewById(R.id.section_label);
    // textView.setText(Integer.toString(getArguments().getInt(ARG_SECTION_NUMBER)));
    // return rootView;
    // }
    // }

}
